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Title:
METHOD OF MANUFACTURING DRAWN CAN
Document Type and Number:
Japanese Patent JP2021191592
Kind Code:
A
Abstract:
To provide a mold that is used to mold a blank for drawing by punching through a metal plate and that effectively suppresses the progress of separation of a surface treatment film.SOLUTION: According to the present invention, a mold for being used to mold a blank for drawing by punching through a metal plate comprises a top plate for being brought into contact with the metal plate, and a peripheral end surface that does not continue into the top surface. At least the top surface is coated with a surface treatment film.SELECTED DRAWING: Figure 2

Inventors:
SHIROISHI RYOZO
TAKAO KENICHI
KUMAGAI TAKUHO
Application Number:
JP2021148541A
Publication Date:
December 16, 2021
Filing Date:
September 13, 2021
Export Citation:
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Assignee:
TOYO SEIKAN GROUP HOLDINGS LTD
International Classes:
B21D22/26; B21D22/28; B21D37/20
Domestic Patent References:
JP2000167625A2000-06-20
JP2004001034A2004-01-08
JP2014223661A2014-12-04
JPH06262275A1994-09-20
JP2000355705A2000-12-26
Attorney, Agent or Firm:
Naozumi Ono
Sachiko Okunuki
Taizo Shiraishi



 
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